Eel-stop



(No Model.)

L. M. SLADE.

BBL STOP.

Patented Apr. 11, 1882.

, Jn ve 2z i0 2- N. PETERS Fimo-Uilwmphr, wuhingtan, D. C,

UNITED STATES PATENT` QEEICE.

L. MYRCN sLADE, CE EEIDCEPCRT, CONNECTICUT.

EEL-STO P.

SPECIFICATION forming part of Letters Patentv No. 256,394, dated April 11, 1882.

Application tiled/November 10, 1881. (No model.)

To all'zehom It may concern Be it known that I, L. MYRCN SLADE, a citizen ofthe United States,residingatBridgeport, in the county of Fairfield and State of Connecticut, have invented a new and uselul Eel-Stop, ot' which the following is a specifica` tion.

My invention relates to improvements in eel-stops in which a plate'is secured in a case or box immediately in front of the inlet from the street corporation cock of a main-supply pipe; and the objects of my invention are, first, to afford facilities for the regular flow of the water from the supply-pipe through the box or case to the service-pipe to prevent the eel from entering in the service-pipe.; also, to provide a simple and inexpensive method for examining and cleaning the eel-stop. I attain these objects by the mechanism illustrated inthe accompanying drawings, in which- Figure l is a t'op view of the machine. Fig. 2, a Vertical section; Figs. 3 and 4, detailed views of the stopplate.

Similar letters refer to similar parts throughout the several views. v v

That others may fully understand m y in vention, I will particularly describe it.

The-case b is a rectangular box of some suitable metal, and for the sake of cheapness and convenience it is castin a single piece, excepting the removable side or cover a. On opposite sides thevcase b is provided with hubs c, threaded to receive the service -pipes 7c k. At the inlet side, 7c, the coupling-pipe is made short, so as to place the stop as near to the main service-pipe as possible, so that the eel, when he finds his progress arrested, may, Without difficulty, withdraw into the main pipe again. Opposite and transverse to each of the openings to which the service-pipes are coupled I place a stop-plate, g, the edge of which extends nearly to the walls of the box or case b, and that part of said plate which is opposite the orifice approaches so close to the part of the case surrounding said orifice that an eel will not be able to pass said plate. This distance will be determined by the crosssectional area of the inlet-pipe, which must,

- of an imaginary cylinder whose diameter equals the diameter of said orifice and whose length equals the distance between the plate g and the case b adjacent to said Yorilice. yAs the edges or the plate y exceed the peripheral dimensions of said orifice. they may be placed correspondingly nearer to the wall ofthe case l), and I therefore make said plates with an obtuse angle at about the center, as shown by dotted lines in Figs. l and 3, Thereby the inlet is contracted to admit a very thin sheet of water without retarding its velocity .more than is due to the slightlv-increased friction of an quire no further fastening. These ears extend beyond the edge of said plates, and thereby leave a passage for water all along the remainder of said edges. A central diaphragm or partitiornf, with a central opening is also formed in the case b, to cause the currents to flow through the central part ofsaid case and prevent accumulations of sediment.

lhe cover a is secured by screws j j, and may be easily removed when it may be necessary to inspect or clear out sediment or other obstructing matter which may have been carried into the case. When the cover has been removed the plates g g may be lil'ted out.

Ihe service-pipes may be coupled by unions d, if desired.

Having now described my improvement, what I claim as new is 1. The combination of the case b, having the internal grooves, i i', hubs c c, threaded to receive the service-pipes 7c It', and the center plate,f,'all cast in one piece, substantially as set forth.

2. The case b, combined with the stop-plates g g, set therein opposite, transverse, and close to the orifice of the servicepipes Ic 7c', substantially as and for the purpose set forth.

3. The angular stop-plates gg, provided with the ears h l1., combined with the case b, as described and set forth.

4. The combination of the case b, provided as nearly as possible, equal the surface area with hubs c c for connection with the servicepipes, und the angular pluies y y, sei"l transphrag1n,f,u1ul cover (c, secured by the screws versely to the oriee of said hubs with the rejj,el1 arranged substantially as described and entrant sldes of said plates presented to said shown.

orifices, as set forth. L. MYRON SLADE. 5 5. The combination of the ease b, haring litnessesz the grooves 'i i, und the inlet k and outlet A. SKAATS,

7c', with the angular plates g g, central diu- ALBERT M. TALLMADGE. 

